return Self implementation

src/browser/header/tray/menu/mod.rs

@@ -5,7 +5,7 @@ pub struct Menu {
 }
 
 impl Menu {
-    pub fn new() -> Menu {
+    pub fn new() -> Self {
         // Init model
         let model_tab = gio::Menu::new();
         model_tab.append(Some("New"), Some("win.tab_append"));

src/browser/header/tray/mod.rs

@@ -11,7 +11,7 @@ pub struct Tray {
 }
 
 impl Tray {
-    pub fn new() -> Tray {
+    pub fn new() -> Self {
         let menu = Menu::new();
         let tab = Tab::new();
 

src/browser/header/tray/tab/mod.rs

@@ -6,7 +6,7 @@ pub struct Tab {
 
 impl Tab {
     // Construct
-    pub fn new() -> Tab {
+    pub fn new() -> Self {
         Self {
             widget: Button::builder()
                 .action_name("win.tab_append")